Hood for gas-jets.



No. 823,261 PATENTED JUNE 12, 1906. P. B. GATHBR.

HOOD FOR GAS JETS.

APPLICATION FILED FEB.28.1906.

2 SHEETS-SHEET 1.

No. 823,261. PATENTED JUNE 12, 1906.

. P. B. GATHER.

HOOD FOR GAS JETS.

APPLICATION FILED FEB-28,1906.

2 SHEETS-SHEET 2.

thereof, as shown.

UNITED STATES PATENT orrron.

Specification of Letters Patent.

Patented June 12, 1906.

Application filed February 28, 1906. Serial No. 303,356-

To all whom it may concern:

Be it known that I, FRANK B. CATHER, a citizen of the United States of America, and a resident of Grafton, county of Taylor, and State of West Virginia, have invented certain new and useful Improvements in Hoods for Gas-Jets, of which the following is a speciiication.

My invention relates to a novel hood for gas-jets, and more particularly to improvements in devices for conducting from a room the heat, smoke, and fumes or unconsumed gas emanating from gas-jets; and it has for its object to provide a simple and inexpensive device adapted to be suspended over a gasjet for receiving the heat, smoke, and fumes from the jet and for conducting the same from the room.

A further object of the invention is to provide a device of the character mentioned which may be readily mounted in position and which not only serves to conduct from a room the heat, smoke, and fumes from a gasjet, but which also serves as aventilator, conveying heat, foul air, and escaping gases which collect in a room to a point whence they may escape to the atmosphere.

With these and other objects in view the invention finally consists in the particular construction, arrangement, and combination of parts, which will hereinafter be fully described, reference being herein had to the accompanying drawings, forming a part of this specification, in which Figure 1 is a view showing in side elevation the invention being fitted in place over a jet at one side and on the other side the invention mounted in position. Fig. 2 is an en larged elevation of the upper end of the device, showing the heat-distributer mounted thereon. Fig. 3 is a central vertical section of the invention. Fig. 4 is a central vertical section of the heat-distributer. Fig. 5 is a plan view of the blank from which the heatdistributer is formed.

Referring to said drawings, in which like reference-numerals designate like parts throughout the several views, 1 indicates a glass bell having an integral hollow stem 2, bearing upon its upper end oppositely-disposed lugs 3, which are adapted for supporting engagement with the lath 4 of a ceiling. Said lugs 8 are formed integral with the stem and project outward from opposite sides Said lugs are preferably formed in the shape of a right-angled triangle whose base 5 stands at right angles to the plane of the stem 2that is, horizontaland whose hypotenuse or outer edge 6 is inwardly and downwardly inclined, as shown in Figs. 1, 2, and 3. An integral cup-like collar 7 is carried by the device at the juncture of the bell 1 and stem 2, substantially as shown. The lower ends of the lugs3 are located above the upper edge of the collar 7 at a distance therefrom which is substantially equal to the thickness of an ordinary ceiling. The lower or flared end of the bell has an integral inwardly and upwardly directed flange 8, as shown, the object of which will presently be explained.

The device is mounted over a gas-jet or gas-burner 9, as shown in Fig. 1, the stem 2 thereof being inserted through a hole 10 cut therefor in the ceiling. Said hole is made of a size just sufficient to admit of the assage of the stem and lugs therethrough. i n mounting the device the stem is inserted through the hole 10, the device being held in a position with the lugs 3 in line with the plasteringlath 4, as shown at the left-hand side of Fig. 1. Then with the collar 7 close against the ceiling and covering the hole 10 the device is turned to bring the lugs crosswise, as shown at the right side of Fig. 1. The said lugs are thus brought into supporting engagement with the lath at opposite sides of said hole.

The lugs 3 admit of the application of the device to ceilings of varying thicknesses with but little inconvenience, as if the ceiling is of greater thickness than the length of the space between the lugs and collar only a small iece of the lath at each side need be removed to admit of the lugs being turned into position.

As is well known, there is always a very perceptible circulation of air within the walls of a building and between the adjacent ceilings and floors thereof. Consequently when my device is mounted in position there is a constant upward draft or suction therethrough. The device being located over a gas jet or burner, the flame from which is generating heat, this draft through the device is materially increased, and much of the heat, smoke, and fumes emanating from the burning gas rises to the bell and is thereby conducted to the space 12 between the ceiling and the floor 14 thereabove, whence it passes between the joists 15 to the walls and thence therethrough to the attic, from which it gradually escapes through the roof to the atmosphere. Escaping gases, foul air, and the like are in like manner conducted from the room. The flange 8 serves to arrest and to redirect upward such gases, smoke, fumes, or heat as having entered the bell and being retarded in passing upward to the reduced stem are returning close to the walls of the bell.

Mounted over the mouth of the stem 2, with its legs or supports 16 in embracing engagement with the stem, is a heat distributor or spreader 17, which serves to spread or scatter the heat which issues from the mouth of the stem, thus avoiding excessive heating of the floor 14, which might result if a high degree of heat were permitted to issue directly and unobstructedly from said mouth. Said distributer consists of a sheet-metal conical cap 18, the apex of which points downward, as shown in Fig. 2, and of integral legs or supports 16, which are preferably mounted upon the tops of the lugs 3 close against the stem. Said spreader is preferably cut from a sheet-metal blank in substantially the form shown in Fig. 5 and is then bent .into the desired. shape.

I have described my invention in what I consider to be its simplest form; but it is obvious that various slight changes may be made in the construction and arrangement thereof without departing from the general spirit or scope of the invention. Hence I do not desire to limit myself to the precise construction and arrangement of parts herein shown and described.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a device for conducting from a room the heat, smoke and fumes emanating from a gas-jet, a hood mounted over said gas-jet, said hood comprising a bell having an integral hollow stem projecting through a hole in the ceiling over the gas-jet, an integral collar carried by said stem for fitting against the ceiling, and integral oppositely disposed lugs carried by said stem, said lugs being in supporting engagement with the plasteringlath of the ceiling, said lugs being substantially triangular in form and having their outer edges downwardly and inwardly inclined whereby they are adapted for supporting engagement with ceilings of varying thicknesses.

2. In a device of the character described, a bell having an integral internal upwardly-inclined flange at the mouth thereof, an integral hollow stem carried by the reduced, or upper, end of said bell, supporting-lugs car ried by said stem, and a heat-distributer mounted upon the top of said stem and standing directly over the mouth thereof, said heat-distributer consisting of a sheetmetal conical cap, the apex of which points downward, and of integral supporting-legs carried by said cap.

3. In a device of the character described, a bell having an integral internal upwardly-inclined flange at its mouth, an integral hollow stem carried by the reduced end of said bell, integral supporting-lugs carried by said stem, said lugs being triangular in form and having their outer edges downwardly and inwardly inclined whereby said lugs are adapted for supporting engagement with ceilings of varying thicknesses, and a collar carried by said stem below said supporting-lugs.

4. As an article of manufacture, a bell having an integral internal upwardly-inclined flange at the mouth thereof, an integral hollow stem carried by the reduced end of said bell, a collar carried by said stem for fitting against a ceiling, and integral triangular supporting-lugs carried by said stem, said supporting lugs having their outer edges downwardly and inwardly inclined whereby they are adapted for supporting engagement with ceilings of a thickness greater than the width of the space between said collar and said lugs.

5. In a device for conducting from a room the heat, smoke and fumes emanating from a gas-jet, a hood mounted over said gas-jet, said hood consisting of a bell having an integral hollow stem projected through a hole in the ceiling over the gas-jet, a collar carried by said stem in close engagement with the ceiling, integral oppositely-disposed lugs carried by said stem in supporting engagement with the plastering-lath of the ceiling, said lugs being substantially triangular in form and having their edges downwardly and inwardly inclined whereby they are adapted for supporting engagement with the plastering-lath of a ceiling the thickness of which is greater than the width of the space intervening between said lugs and said collar, an integral internal upwardly-inclined flange carried by said bell at its mouth, and a conical heat-distributor mounted over the end of said stem, said heat-distributer consisting of a conical cap, the apex of which points downward, and integral supporting-legs carried by said cap.

Signed by me in the presence of two subscribing witnesses.

FRANK B. CATHER IVitnesses:

O. E. DE Moss, W. P. SAMPLES. 

